Merge pull request #35 from mguetta1/add-kubeconfig

Add kubeconfig

README.md

@@ -38,6 +38,16 @@ git clone https://github.com/aufi/go-konveyor-tests && cd go-konveyor-tests
 $ make setup # start minikube&tackle using David's scripts - local env only
 ```
 
+### OpenShift cluster
+
+These tests can be executed against OpenShift cluster with Konveyor installed by setting `KUBECONFIG` variable:
+
+```
+KUBECONFIG=<kubeconfig file>
+```
+
+> **_NOTE:_** You might be required to download and import the certificate chain. Please see [Hub API test README](https://github.com/konveyor/tackle2-hub/tree/main/test#https) for more information.
+
 ### Run test suite
 
 Set ```$HUB_BASE_URL``` environment variable to point to Konveyor installation before running tests. More options could be found in [Hub API test README](https://github.com/konveyor/tackle2-hub/tree/main/test#rest-api).

config/config.json

@@ -1,4 +1,5 @@
 {
+	"KUBECONFIG": "",
 	"RETRY_NUM": "10",
 	"KEEP": "0"
 }

config/configuration.go

@@ -1,6 +1,7 @@
 package config
 
 type Configuration struct {
+	KUBECONFIG    string `env:"KUBECONFIG"`
 	JIRA_USERNAME string `env:"JIRA_USERNAME"`
 	JIRA_PASSWORD string `env:"JIRA_PASSWORD"`
 	JIRA_URL      string `env:"JIRA_URL"`

e2e/metrics/metrics_utils.go

@@ -1,13 +1,17 @@
 package metrics
 
 import (
+	"bytes"
 	"fmt"
 	"os"
 	"os/exec"
 	"strconv"
 	"strings"
 	"time"
 
+	. "github.com/konveyor/go-konveyor-tests/config"
+	. "github.com/onsi/gomega"
+
 	"github.com/konveyor/go-konveyor-tests/utils"
 )
 
@@ -16,10 +20,6 @@ var (
 	hub_pod_name       string
 )
 
-func init() {
-	hub_pod_name = getHubFullName()
-}
-
 func getHubFullName() string {
 	operator_namespace = "konveyor-tackle"
 	pod := "tackle-hub"
@@ -30,25 +30,40 @@ func getHubFullName() string {
 		pod = "mta-hub"
 	}
 	cmd := fmt.Sprintf("oc get pod -n %s | grep %s | awk '{print $1}'", operator_namespace, pod)
-	return runCmd(cmd)
+	return runOpenshiftCmd(cmd)
 }
 
 func GetMetricValue(metricName string) int {
+	hub_pod_name = getHubFullName()
 	utils.Log.Info("Waiting for 30 seconds...")
 	time.Sleep(30 * time.Second)
 	cmd := fmt.Sprintf("oc exec -n %s %s -- curl -s http://localhost:2112/metrics | grep %s", operator_namespace, hub_pod_name, metricName)
-	var outStr []string = strings.Split(runCmd(cmd), "\n")
+	var outStr []string = strings.Split(runOpenshiftCmd(cmd), "\n")
 	metricValue := outStr[len(outStr)-1]
 	metricValue = utils.LastString(strings.Split(metricValue, " "))
 	outInt, _ := strconv.Atoi(metricValue)
 	return outInt
 }
 
-func runCmd(cmd string) string {
-	out, err := exec.Command("bash", "-c", cmd).Output()
-	if err != nil {
-		return fmt.Sprintf("Failed to execute command: %s", cmd)
-	}
-	out = out[:len(out)-1]
-	return string(out)
+// runOpenshiftCmd runs an OpenShift command and returns its output as a string.
+func runOpenshiftCmd(cmd string) string {
+	os.Setenv("KUBECONFIG", Config.KUBECONFIG)
+
+	// Create a new command to execute in a Bash environment.
+	command := exec.Command("bash", "-c", cmd)
+
+	// Create a buffer to capture the standard output of the executed command.
+	var out bytes.Buffer
+	command.Stdout = &out
+
+	// Execute the command and check for any errors.
+	err := command.Run()
+	Expect(err).ShouldNot(HaveOccurred())
+
+	// Assert that the captured output is not empty.
+	Expect(out.Len()).ShouldNot(BeZero())
+
+	// Removing the trailing newline character ("\n")
+	outStr := out.String()
+	return outStr[:len(outStr)-1]
 }